VOUTONNE à PRECIGNE, paramètre Nitrates
mg(NO3)/L
12/02/15
34
22/04/15
33
04/06/15
38
26/08/15
8.9
23/10/15
20
02/12/15
25
14/10/22
9.8
17/11/22
7.2
13/12/22
15
12/01/23
40
13/02/23
37
13/03/23
20
14/04/23
17
22/05/23
20
09/06/23
10
12/07/23
9.5
22/08/23
7.7
12/09/23
5